Perhaps you should try some spelling variations:
cau theo » cau thi, cau tao
thanh vi » hanh vi, thanh va, thanh ve
hieu van » hieu va, thien van, lieu va
dang xay » dang van, van xay
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va
xuc gia » duc gia, luc gia, tuc gia
hanh va » hang va, hanh vi
te sach » toc sach
y dang » ky dang, 2 dang, _ dang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y dang xay hoi. ((hieu ve) OR (hieu van)) cam xuc gia ((thanh vi) or (hanh va)) cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y dang xay hoi. ((hieu ve) OR (hieu van)) cam xuc gia ((thanh vi) OR (hanh va)) cau theo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y dang xay hoi. ((hieu ve) OR (hieu van)) cam xuc gia ((thanh vi) or (hanh va)) cau theo".
• Adding a wildcard symbol may retrieve word variants: te sach y dang xay hoi. ((hieu ve) OR (hieu van)) cam xuc gia ((thanh vi) or (hanh va)) cau theo*.